[Heathkit] HP-23 Mystery 6.3 volt Green Wire???

[crawfish]

Dan has an HP-23. I have a chart I got off the web that has the different
characteristics of the HP-23 series. I have a feeling that they changed out
the power transformer.
                                                      Joe W4AAB
----- Original Message -----
From: "Kim Herron" <kherron at voyager.net>
To: <OTAKEBI at aol.com>; <heathkit at mailman.qth.net>
Sent: Sunday, August 20, 2006 7:37 PM
Subject: Re: [Heathkit] HP-23 Mystery 6.3 volt Green Wire???


> Hi dan,
> >OK, I have another mystery on this HP-23 I am modifying.
> >This if for the list and for Ed if he reads this.
> >I have gone nuts today trying to find the green wire from the transformer
of
> >my HP-23.
> >This is the wire that should go to lug #8 so as to supply 6.3  volts to
the
> >filaments.
> >Nothing is connected now to lug #8 now.
> >Now according to the paperwork I got a hold of the HP-23 and HP-23A have
> >provisions for 6.3 volts and 12 volts.
> >Schematic shows a green wire to lug #8 and construction manual  shows to
> >connect green wire to lug #8 for 6.3 volts filament.
>
>          Yes.  Heath actually made FOUR versions of that supply.  The
power
> transformer was not the same between them.
> It sounds as though you have either a HP-23B or C.  You may even have a
> PS-23 which was very similar but different again.
> Look carefully at the supply and find the model number.  The later
supplies
> didn't have adjustable low voltage or heater voltages.
> I'm betting that's what'cha got.
>
>
>
>
>
>
>
> >Any help with this Heathkit mystery?
> >Thanks,
> >Dan/N4VET
> >
> >
> >_______________________________________________
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> Thanks!!
>
> Kim Herron  W8ZV
> 1-616-677-3706
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